I run a non-tech based business www.texadmissions.com while traveling the world full-time. I help students apply to college specializing in admission to UT-Austin. I am a former admissions counselor for UT. I founded my business in April 2015 and it is my only revenue stream. I work 99% by e-mail, though occasionally I skype or receive calls via international sim card.
I am a lead moderator on www.reddit.com/r/applyingtocollege and I produce content through a blog and a popular Youtube channel. My traffic is completely organic - I don't pay for advertising. My only competitor is the university itself. They are notoriously bad about getting information out to the public. I supply that demand and live off consulting fees. In a way, I can reach many hundreds and thousands more people outside of an institution than I could physically visiting high schools in my previous role.
My revenues more than allow me to explore the world. In the early days, I could adjust my runway by simply traveling slow and staying longer in less costly places. I don't make enough money right now to live a conventional life in an American city, but I can live comfortably elsewhere. I charge a lot less than my competitors while, I believe, providing a higher quality service. I am currently transitioning into products.
I fly to Barbados next week to begin my fourth year abroad.